It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18771 ) Wen Cheng discovered that Exiv2 did not correctly handle certain memory allocation. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18899 ) It was discovered that Exiv2 did not correctly handle writing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2025-54080 ) It was discovered that Exiv2 did...
It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18771 )
Wen Cheng discovered that Exiv2 did not correctly handle certain memory allocation. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18899 )
It was discovered that Exiv2 did not correctly handle writing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2025-54080 )
It was discovered that Exiv2 did...
It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18771 ) Wen Cheng discovered that Exiv2 did not correctly handle certain memory allocation. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18899 ) It was discovered that Exiv2 did not correctly handle writing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2025-54080 ) It was discovered that Exiv2 did not correctly handle parsing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. ( CVE-2025-55304 ) It was discovered that Exiv2 did not correctly handle parsing certain images. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2026-25884 ) It was discovered that Exiv2 did not correctly handle previewing certain images. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-27596 ) It was discovered that Exiv2 did not correctly handle certain integer arithmetic. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-27631 )
It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18771 )
Wen Cheng discovered that Exiv2 did not correctly handle certain memory allocation. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. ( CVE-2020-18899 )
It was discovered that Exiv2 did not correctly handle writing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2025-54080 )
It was discovered that Exiv2 did not correctly handle parsing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. ( CVE-2025-55304 )
It was discovered that Exiv2 did not correctly handle parsing certain images. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. ( CVE-2026-25884 )
It was discovered that Exiv2 did not correctly handle previewing certain images. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-27596 )
It was discovered that Exiv2 did not correctly handle certain integer arithmetic. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-27631 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
